Blind-roller.



No. 695,094. Patented Mar. ll, I902.

W. F. DUGINS.

BLIND ROLLER. (Application filed Apr. 19, 1901.)

(No Model.)

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A TORIVE Y3 UNITED STATES FFICE.

i ATnnT I/VILLIAM FRANCIS DUGINS, OF KEW, VICTORIA, AUSTRALIA, ASSIGNOR OF THREE-FOURTHS TO JOHN JAMES PEROIVAL GARRETT, OF KEW, NEAR MELBOURNE, AUSTRALIA, AND HARRY MIDDLETON TODD AND ELIAS DIMANT, OF MELBOURNE, VICTORIA, AUSTRALIA.

BLIND-ROLLER.

SPECIFICATION forming part of Letters Patent N 0. 695,094, dated March 11, 1902.

Application filed April 19, 1901. Serial No. 56,624. (No model.)

To crZZ whom it may concern.-

Be it known that I, WILLIAM FRANCIS DU- GINS, a subject of the King of Great Britain and Ireland, and a resident of Kew, county of Bourke, State of Victoria, and Commonwealth of Australia, have invented a certain new and useful Improved Blind-Roller, of which the following is a specification.

This invention is especially applicable to Venetian blinds, which from their great Weight and the multiplicity of cords that is usually required to raise them are cumbrous, insecure, and unwieldy.

The invention is based upon the principle of the mechanical instrument known as the wheel and axle and is provided with a check apparatus which when put into action will arrest the rotation of the roller in any desired position; but in order that the invention may be thoroughly understood reference is made to the accompanying sheet of drawings, in which Figure 1 is a front elevation of the roller and blind. Fig. 2 is a plan of the check end of the roller. Fig. 3 is an end elevation of the check end of the roller. Fig. 4 is an end elevation of the opposite end of the roller.

A is the base-plate, which is perforated at points B B B to allow of the passage of the several cords. The slats O are threaded in the usual way by the cords D D, such cords being attached at their lower ends to the bottom slat and at their upper ends to the periphery of the roller E. The lifting-cord F is secured to the periphery of the roller E, is coiled thereupon several turns, and hangs loosely therefrom.

When it is desired to raise the blind, the cord F is pulled by the operator. This will have the effect of unwinding the coils of the cord F and causing the rotation of the roller E, while at the same time the cords D D will, owing to such rotation of the roller E, be wound thereupon, and thus the blind will be raised.

In order that the blind may be checked at any point in its ascent or descent, special arrangements are provided. To the end of the roller E is attached a metal check-plate G, from which projects studs I-I. Pivoted to the side of the standard that supports the roller E is a weighted bell-crank lever J, to the horizontal arm of which is secured the checkcord K, while the vertical arm J is provided with a weighted projection L. When it is desired to maintain the blind in any position,

the downward movement of the cord F is ar rested and the cord K is pulled down. This will have the effect of putting the bell-crank lever in position shown in dotted lines, Fig. 1, when the vertical arm of the bell-crank will engage one of the projections H on the check-plate G and will be maintained in that position by frictional contact, and the rotary movement of the roller will thus be arrested. When it is desired to release the roller, the cord F is pulled down slightly. The weighted arm L will then release the bell-crank 1ever from contact with either of the projections 1-1, and the blind may be raised or lowered, as desired.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In combination, a roller suitably supported, cords wound thereon in one vdirection, lines carried by said cords, a hauling-cord wound on said roller in a reverse direction, a plate on the end of the roller having a plurality of projecting studs, a supporting-bracket in which said roller is journaled, a bell-crank lever pivoted to said bracket, said bell-crank lever having a horizontal projecting arm provided with a draw-cord and a vertically-depending arm adapted to engage said projections, and a weighted extension at the lower end of said depending arm, substantially as described.

In witness whereof I have hereunto set my handin presence of two witnesses.

WILLIAM FRANCIS DUGINS.

Witnesses:

A. O. SAOHSE, A. HARKER. 

